The SHURE's BLX14/SM31 is a cost-effective wireless headset microphone system for fitness and aerobics instructors that has high-quality sound, easy setup, intuitive operation, and dependable performance. This wireless microphone system is includes BLX4 receiver, BLX1 bodypack transmitter, and SM31 cardioid condenser microphone.
BLX4 wireless receiver
BLX1 bodypack transmitter
Shure SM31FH Fitness Headset Condenser Microphone